I have the problem too... seems like it's a regular problem in XP... (don't know about the other windows versions). Plus! works fine, but like as frankiedaman says: all the other accounts aren't "installed properly" and you can't install it again because "without admin-rights you can't access the registry", but all my other account's are admin-righted too... to solve the problem I had to delete all my other accounts

. I think a lots of people got this problem too because they also got XP with multiple users... so I think most people just delete it and think it's a bad program... but bad tought! No plus! = No messenger...!!! please solve this. Exca.